Okla. Stat. tit. 19, § 19-865.70: County real estate contracts — Contingencies allowed —

Restrictions.

A county may enter into a real estate contract for the sale,

conveyance, or exchange of real property, option to purchase real

property, or a lease with an option to purchase real property that

includes a contingency, not to exceed one hundred eighty (180) days,

for the purposes of securing required permits, lot changes, zoning

changes, and any other land use approvals necessary to use and

operate the real property.